Hello, in order to help you better I need the following information.
Please, send me the information listed here: http://en.savefrom.net/user.php?info=1
Could you please send a few links you can't download. We will check it out.
Do you download via the extension SaveFrom.net Helper or the website SaveFrom.net?
For the better understanding it'll be great to see a screenshot with the error.

Hello, Please, let us know what is the name of the program you are using for downloading videos?

For the better understanding it'll be great to see a screenshot with the error.

Hello, please give us more details.

Hello, this site is not on the list of supported resources. The full list can be found here: http://en.savefrom.net

Hello, due to technical reasons such links are not being processed on the website at the moment. Sorry for inconveinence caused.

Hello, Unfortunately, we don't fully understand you... please. provide us with more details regarding the issue.

Hello, in order to help you better I need the following information.
Please, send me the information listed here: http://en.savefrom.net/user.php?info=1
Could you please send a few links you can't download. We will check it out.
Do you download via the extension SaveFrom.net Helper or the website SaveFrom.net?
For the better understanding it'll be great to see a screenshot with the error.

Hello, due to technical reasons such links are not being processed on the website at the moment. Sorry for inconveinence caused.

Hello, we have nothing to do with Tampermonkey, we use it as a third-party application to our script.

Regarding expanding, what exactly doesn’t work for you?

Hello, please, send us more details regarding the problem.